butler



2 Sheets-Shet 1.

(No Model.)

W. BUTLER. THRASHIING MACHINE.

No. 429,418. Patented'June 3 1890.

THE NORRIS PEYERS co., rnuTo-umo msiuuarau, m c.

(No Model.) z sneets-sneet 2, W. BUTLER;

THRASHING MACHINE.

N0. 429,418. Patented June 3, 1890.

fiirzesses: Mm 1 venion I UNITE STATES PATENT Orricn.

WESLEY BUTLER, OF BUFFALO, NEIV YORK, ASSIGNOR OF ONE-HALF TO THE PITTS AGRICULTURAL IVORKS, OF SAME PLACE.

THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 429,418, dated June 3, 1890. Application filed March 31, 1890. Serial No. 345,975. (No model.)

To all whom it may concern:

- Be it known that I, WVESLEY BUTLER, a citizen of the United States, residing at Bu tfalo, in the county of Erie and State of New York, have invented new and useful Improvements in Thrashirig-Machines, of which the follow-.

ing is a specification.

This invention has more especial reference to thrashing-machines in which a vibrating grain-pan is arranged underneath the thrashing-cylinder, whereby the separated grain is conducted to a shaking-shoe for freeing the grain from chaff and other impurities.

The object of my invention is to effect a more thorough separation of the grain from the straw and to prevent any grain from being carried olf with the straw.

In the accompanying drawings, consisting of two sheets. Figure 1 is a longitudinal sectional elevation of my improved thrashingmachine. Fig. 2 is atransverse section thereof in line 0003, Fig. 1. Fig. 3 isalongitudina] section in line y y, Fig. 1. Fig. at is a fragmentary longitudinal section showing a modified construction of the grain-catching device.

Like letters of reference refer to like parts in the several figures.

A represents the inclosing-casing of the machine.

B is the toothed thrashing-cylinder; B, the porforated concave arranged below the cylinder, and O the feed-board whereby the straw is delivered to the'thrashing-cylinder.

D represents the vibrating pan arranged with its front portion underneath the concave B, and E is the vibrating table or straw-carrier supported upon the vibrating pan and receiving the straw and grain passing over the rear end of the concave B. This strawcarrier, which is of Well-known construction, consists of transverse inclined slats separated by spaces, through which the grain falls upon the receiving-pan below, and raised serrated bars, upon which the straw rests and whereby it is gradually carried rearwardly. I

F represents the beater-cylinder arranged in rear of the thrashing-cylinder above the vibrating straw-carrier E, and whereby the straw coming from the thrashing-cylinder is loosened and directed upon the straw-carrier.

G represents a guard or grating arranged in the upper part of the casing immediately in rear of the thrashing-cylinder, and whereby the bulk of the straw thrown rearwardly and ranged in the upper part of the casing A in rear of the thrashing-cylinder B, and which receives any grain and small straw which are thrown upwardly beyond the grating G by the thrashing-cylinder and conducts the same into a transverse conveyer-trough I, arranged in the upper portion of the casing below the delivery end of the carrier. The catcher .l-l preferabl y consists of an inclined endless separator or carrier extending from side to side of the casing, running around suitable pulleys, and having transverse bars or slats arranged at intervals to form intervening spaces, through which the grain-passes, while the straw is intercepted by the slats and falls upon the beater-cylinder F, which latter delivers it upon the vibrating table E.

71 represents 'a series of inclined parallel bars arranged above the carrier I-I inthe form of a grating and extending from end to end thereof. This grating permits the grain to pass between its bars upon the carrier H, but

.arrests the small straw, causing it to slide down the grating upon the beater-cylinder.

t' represents an inclined delivery-board arranged on the under side of the endless carrier H, in close proximity thereto. and extending from the lower front end of the carrier to the trough I. The grain passing through the endless carrier falls upon this inclined delivery-board between the spaces of the slats running in contact with said board, and is conveyed by the slats into the trough I.

J represents a right. and left hand screw conveyer arranged in the trough I for carrying the material toward opposite ends of the trough, and K K descending delivery-spouts leading from opposite ends of the trough to the vibrating pan, and whereby the grain in said trough is delivered upon the pan in rear of the vibrating straw-carrier E.

a therefrom any remaining grain.

Heretofore the grain which was thrown upwardly and rearwardly into the upper part of the casing by the thrashing-cylinder was allowed to fall upon the body of straw passing over the vibrating straw-carrier E, and a portion of the grain was thereby carried off with the straw, causing a considerable waste of grain. By providing a separating and delivery device for catching this grain and cond ucting it upon the receiving-pan underneath the straw passing above the pan the grain is prevented from again coinmingling with the straw, thereby preventing unnecessary loss of grain, facilitating the separation of the grain from the straw by relieving the straw-carrier E and increasing the capacity of the machine. The grating or open guard G, by intercepting the straw and permitting the grain to pass through the same, acts as a preliminary separator, which prevents a large portion of the straw from reaching the grain-catching device H, thereby relieving the latter and still further increasing the separating capacity of the machine.

Instead of using a separator H, consisting of an endless carrier for catching the grain, a shaking shoe or screen may be employed for this purpose, as represented in Fig. 4. In this case the small straw and grain which are thrown upwardly by the thrashing-cylinder fall upon the screen, the straw being tailed off, while the grain passes through the screen and is delivered into the conveyer-trough I. I prefer to employ the endless carrier, however, because it takes up less room in the casing than the vibrating screen.

M is the endless inclined straw-elevator arranged in rear of the vibrating carrierE, and which receives the straw from the latter.

N represents an oscillating delivery or fin board arranged below the head of the elevator M, and which receives the straw from the same and deposits it upon the discharge-earrier O. This delivery-board is pivoted at its upper end underneath the delivery end of the elevator M, and is provided with rearwardlyextending fins or serrated bars P, which overhang the lower end of the discharge-carrier O. The lower free end of this delivery-board is supported by inclined braces g, which are pivoted at their upper ends to the deliverybdard and at their lower ends to the sides of the vibrating pan D, as represented in Fig. 1. By this means a compound rising-and-falling and forward-and-backward motion is imparted to the fins or toothed bars, whereby the straw resting upon the same is gradually moved onward toward the discharge-carrier and at the same time tossed, thereby agitating and loosening the straw and detaching The grain so detached falls upon the rear end of the pan D below, while the straw passe over the tail of the toothed bars upon the dischargecarrier or elevator O.

R represents the usual shaking shoe or screen arranged at the tail end of the pan D, and whereby the grain is separated from the chaff and other foreign substances, and S is the fan, whereby an air-current is diverted through the vibrating screen.

The several carriers, shaking-shoe, fan, and other movable parts are driven from the main shaft in any suitable manner.

I claim as my invention- 1. The combination, with the casingand the thlashing-cylinder, of a receiving pan or ta ble arranged underneath the thrashing-cylinder, a grain-catching device arranged in the upper part of the casing in rear of the thrashing cylinder and receiving the material thrown upwardly by the latter, and a delivery device whereby the material deposited upon said catching device is conducted upon the receiving pan or table, substantially as set forth.

2. The combination, with the casing and the thrashing-cylinder, of a receiving pan or table arranged below the thrashing-cylinder, a separator arranged in the upper part of the casing in rear of the thrashing-0y]inder, and a delivery device whereby the grain is conducted from said separator to said pan or table, substantially as set forth.

3. The combination, with the casing and the tlii'ashingcy'linder, of a receiving pan or table arranged below the thrashing-cylimler, an endless carrier arranged in the upper part of the casing in rear of the thrashing-cylinder, and a trough or chute receiving the material from said carrier and delivering the same to the receiving pan or table, substanstantially as set forth.

L The combination, with the casing and the thrashing-cylinder, of a receiving pan or table arranged below the thrashing-cylinder,

a vibrating straw-carrier arranged above said pan, an endless carrier arranged in the upper part of the casing in rear of the thrashingcylinder, a conveyer-trough, into which the material deposited upon said endless carrier is delivered, and a spout whereby the material is conducted from said trough to the receiving-pan, substantially as set forth.

5. The combination, with the casing and the thrashing-cylinder, of a grain-catching device arranged in the upper part of the easing in rear of the thrashing-cylinder, and an open guard or separator arranged between the thrashing-cylinder and said grain-catching device, substantially as set forth.

Witness my hand this 28th day of March, 1890.

WESLEY BUTLER.

\Vitnesses:

JNo. J. BONNER, FRED. (3. GEYER. 

